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DC Generators

DC Generators
In case of dc machines, mechanical losses are primary function of

Voltage
None of the listed here
Speed
Current

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DC Generators
The essential condition for parallel operation of two D.C. generators is that they have

The same drooping voltage characteristics
The same operation r.p.m.
Same kW rating
Same percentage regulation

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DC Generators
In a D.C. generator the magnetic neutral axis coincides with the geometrical neutral axis, when

There is no load on the generator
The generator runs on designed speed
The generator runs on overload
The generator runs on full load

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DC Generators
The number of brushes in a commutator depends on

Amount of current to be collected
Type of winding
Voltage
Speed of armature

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DC Generators
The armature of dc generator is laminated to

Reduce the bulk
Reduce eddy current loss
Insulate the core
Provide the bulk

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DC Generators
An exciter for a turbo generator is a

Series generator
Compound generator
Separately excited generator
Shunt generator

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MORE MCQ ON DC Generators

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